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HD74BC640A

Renesas
Part Number HD74BC640A
Manufacturer Renesas
Description Octal Bus Transceivers
Published Dec 4, 2017
Detailed Description HD74BC640A Octal Bus Transceivers With 3 State Outputs REJ03D0290–0200Z (Previous ADE-205-026 (Z)) Rev.2.00 Jul.16.2004...
Datasheet PDF File HD74BC640A PDF File

HD74BC640A
HD74BC640A

Overview
HD74BC640A Octal Bus Transceivers With 3 State Outputs REJ03D0290–0200Z (Previous ADE-205-026 (Z)) Rev.
2.
00 Jul.
16.
2004 Description The HD74BC640A provides high drivability and operation equal to or better than high speed bipolar standard logic IC by using Bi-CMOS process.
The device features low power dissipation that is about 1/5 of high speed bipolar logic IC.
When the frequency is 10 MHz.
The device has eight bus transceivers with three state outputs in a 20 pin package.
Each device has an active low enable input (G) and a direction control input, DiR.
When DiR is high, data flows from the A inputs to the B outputs.
When DiR is high, data flows from the B inputs to the A outputs.
When enable inputs (G) is high, disables both A and B ports by placing then in a high impedance.
Features • Input/Output are at high impedance state when power supply is off.
• Input pins can be open, when not used, owing to built in input pull up circuit.
• Input is TTL level.
• Wide operating...


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